Compressor for rail-bonds.



0. H. OSLUNDS COMPRESSOR FOR RAIL BONDS. APPLIOATIONIILED snrmza. 1905.

WITNESSES INVENI'OR CO a/uwvCOFm PATENTED JUNE 12, 1906.

U ITED sTATEs PA NT oErroE.

CHARLES OSLUND, or wosCEsTeR, MASSACHUSETTS, ASSIGNOR To THE AMERICAN STEEL & WlRE cos mar or NEW JERSEY, or WORCESTER, MASSACHUSETTS, A CORPORATION or NEW JERSEY.

COMPRESSOR Fon RAiL-Bouos.

I Specification of Letters Patent.

- Patented June 12, 1906.

Application filed September 23,1905. Serial No. 279,861.

To all whom, it may concern:

Be it known that I, CHARLES H. OSLUND, of lVorcester, in the county of WVorcester and State of Massachusetts, have invented a new and useful Compressor for Rail-Bonds, of which the following is a specification, reference being had to the accompanying drawings, in which Figure 1 is a perspective view of my device partly broken away for purpose of illustration. Fig. 2 is a vertical section on the line 11.11 of Fig. 1. Fig. 3 is a section on the line 111 III of Fig. 2.

My invention'provides a device for'compressing the metal of a copper rail-bond into the hole in the rail in such manner that the work can be performed much more expeditiously and easily than heretofore.

In the drawings, 2 represents the anvil of the compressor, and 3 is the compressorscrew,wh1ch fits within a OYllIldllOflllIlt-GT- nally-threaded shell 4. This shell is fitted.

within a socket in the frame of the compressor and is provided at its inner end with looking: ears 5, which when the device is in position on the rail bear against -t e inner face of the frame and prevent the hell from being retracted, while a knurled head 6 at the other end of-the shell bears against the outer face of the frame and holds the shell from being moved inwardly. The socket in which the shell is, set has opposite grooves 7, and if the shell be turned through ninety degrees by means of the knurled head so as to bring the ears into register with the grooves it can then be pulled outwardly to a limited distance determined by a set-screw which projects into one of the grooves 7.

To adapt the compressor to be placed over the head of a rail and to be brought into working condition, the shell is retracted as above described, thus drawing back with it the screw 3. When the screw and anvil are brought opposite to the rail-bond, the shell is pushed inwardly until the locking-ears pass beyond the grooves. The shell is then turned ninety degrees to bring the ears into locking position, and the screw is turned bya suitable wrench, so asto compress the metal of the bond. To release and remove the compressor, the screw 3 isretracted a very short distance, and then the shell is turned and pulled back, leaving the compressor free to be lifted over the head of the rail.

The facility with which my device is adjusted and removed distinguishes it in a marked manner from prior screw compressors, which in the best type heretofore known have had two screws, an outer hollow screw and an inner screw, the thread of the outer screw being of less pitch than the inner screw, so that it may be removed more rapidly. Such prior compressors cannot be placed over a railheador removed without first turning the outer screw back a considerable distance, and this is a slow operation and if. the thread be comes rusty or injured is laborious and troublesome. My device obviates these objections in a thorough manner.

- In the drawings Ishow my device provided at the end of the screw with a sliding and rotatable sleeve 8 and spring 9, which I do not claim herein, as they are the invention of. Charles R. Sturdevant.-

Within the scope of my invention as defined in the claims many changes may be made, since What I claim is 1. A compressor for-the purpose described, having a frame-carrying an anvil portion, a compressor-screw in line. with the anvil, an internally-threaded shell or sleeve in which the screw has its bearing,'and which is slidingly mounted in said frame, and means whereby said shell may be locked and released by a turning movement; substantially as described.

2. A compressor for the purpose described, having a frame, a sleeve slidably and rotatably mounted in saidframe and having an internal thread, a locking-ear on the sleeve, a groove in the frame in which the ear ma 7 travel, a bearing on the framewith which said ear may engage,and a compressor-screw having a threaded bearing in said sleeve; substantially as described. 4

3. In a compressor for the purpose described, a frame, a sleeve'slidably and rotata bly mounted in said frame, a head at one end portion of the sleeve arranged to bear against ohe face of said frame, an ear or projection at .Inv testimony whereef I have hrutiti) set the ;o posige end P QItiOIIB of the sleefve er; .my hand. mpg to ear agamst t e opposite ace 0 e the -1'an 1e,.the frame having a. oove to pass 0 CHARLES OSLUND' 5 the send pfojeetion therethlou and a com- Witnesses: pressin 4:001 having a three ed beerin in CHAS. R. STURDEVAN'I; the'sai sleeve; substantially as describe WM. A. BACON. 

